Update Data Sources

Signed-off-by: GitHub <noreply@github.com>

Author: jmertic

_data/meeting-agenda-items.csv

@@ -21,3 +21,4 @@ Galasa - Annual Review,https://github.com/openmainframeproject/tac/issues/584,58
 Mainframe Open Education - Annual Review,https://github.com/openmainframeproject/tac/issues/494,494,Future Meeting Agenda Items
 z/VM Community Tools - Annual Review,https://github.com/openmainframeproject/tac/issues/454,454,Future Meeting Agenda Items
 COBOL Programming Course - Annual Review,https://github.com/openmainframeproject/tac/issues/585,585,Future Meeting Agenda Items
+Intro to OpenTelemetry on Mainframe SIG,https://github.com/openmainframeproject/tac/issues/616,616,Upcoming Meeting Agenda Items